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Finding the Fourth Proportional to 389,000.91, 583,501.37 and 104,692.10

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Solution

The fourth proportional to 389,000.91, 583,501.37 and 104,692.10 is: 157,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,000.91 : 583,501.37 = 104,692.10 : x
  2. Step 2: Convert to fraction form
    389,000.91/583,501.37 = 104,692.10/x
  3. Step 3: Cross multiply
    389,000.91x = 583,501.37 × 104,692.10
  4. Step 4: Simplify right side
    389,000.91x = 61,087,980,337.21
  5. Step 5: Solve for x
    x = 61,087,980,337.21/389,000.91
  6. Step 6: Final answer
    x = 157,038.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.